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The single-chip SSL4120 is an efficient solution for high-power LED applications such as office lighting, mall lighting, high and low shed lighting, parking lot lighting, square lighting and street lighting. The SSL4120 fully supports utility applications and supports efficient start-up directly from the rectified universal mains voltage range of 90 to 305 volts. The SSL4120 supports low total harmonic distortion (THD) of less than 10%, high power factor (PF) above 0.97, and typical PFC frequency of 380 kHz, meeting and exceeding the traditional requirements for high power LED lighting applications. NXP will present its latest SSL driver chip green chip series at the Hong Kong International Lighting Fair (Booth No. 5B-C12).
Ryan Zahn, General Manager of NXP's Global Lighting Solutions product line, said, "The demand for high-power LED solutions is becoming more and more demanding in commercial, industrial and street lighting applications worldwide, whether indoors or outdoors. The SSL4120 single chip integrates power. Factor correction controllers and half-bridge resonant converters provide an elegant, cost-effective solution for high-performance LED driver and power supply designs in the market." 
Key features of the SSL4120
• Single-chip integrated PFC and half-bridge resonant converter (HBC) controller • Designed for high-power LED applications from 75 to 400 W • True commons operation from 90 to 305 V • Low THD (˂10%) and High PF (˃0.97)
• Resonant topology and valley/zero voltage switching for high performance (>93%)
• 380 kHz typical PFC frequency meets THD legal requirements • Compact size for the most efficient design with minimal external components • PFC in critical operating mode with real-time control • HBC Burst Switch • Comprehensive protection, including Overcurrent protection (OCP), overvoltage protection (OVP), degaussing detection, open circuit protection, capacitive mode protection, and universal latching protection inputs ensure safe operation even under harsh operating conditions.
Time to market
The SSL4120 resonant controller is NXP's latest high-power LED driver chip, which is currently in volume production and samples will be available soon. Other high-power LED green chip solutions include the award-winning SSL4101, an integrated PFC flyback controller with an adaptive power range of 25 to 150 W. 
NXP Introduces GreenChip Resonance Controller for 400W High Power LED Applications
On October 30, NXP Semiconductors announced the SSL4120, an integrated power factor correction (PFC) GreenChipTM half-bridge resonant controller that supports high power LED applications up to 400W.